[ovs-dev] [PATCH] FAQ: Expand on how one would implement VLAN handling via flows.

Ben Pfaff blp at nicira.com
Wed Feb 6 17:16:14 UTC 2013


On Wed, Feb 06, 2013 at 09:12:10AM -0800, Justin Pettit wrote:
> On Feb 6, 2013, at 8:43 AM, Ben Pfaff <blp at nicira.com> wrote:
> 
> > +   In some situations, you can use "normal switching" as a component
> > +   of your OpenFlow actions, e.g. by putting "normal" into the lists
> > +   of actions on ovs-ofctl or by outputting to OFPP_NORMAL from an
> > +   OpenFlow controller.  In situations where this is not suitable, you
> > +   can implement VLAN handling yourself, e.g.:
> > +
> > +       - If a packet comes in on an access port, and the flow table
> > +         needs to send it out on a trunk port, then the flow can add
> > +         the appropriate VLAN tag with the "mod_vlan_vid" action.
> > +
> > +       - If a packet comes in on a trunk port, and the flow table
> > +         needs to send it out on an access port, then the flow can
> > +         strip the VLAN tag with the "strip_vlan" action.
> 
> I think it would be clearer if you dropped "In some situations" from
> the beginning of the sentence.  Otherwise, I think it looks great.

I made that change and applied this to master.  Thanks.



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